ChBg simplify_path buffer overflow
| chbg-simplifypath-bo (18595) |  High Risk |
Description:
ChBg is vulnerable to a buffer overflow, caused by improper bounds checking in the simplify_path function in the config.c file. By creating a specially-crafted list of file names, a remote attacker could overflow a buffer and execute arbitrary code on the system with user privileges, once the list is processed.
Platforms Affected:
- Debian, Debian Linux 3.0
- MandrakeSoft, Mandrake Linux 10.0
- MandrakeSoft, Mandrake Linux 10.0 AMD64
- MandrakeSoft, Mandrake Linux 10.1 X86_64
- MandrakeSoft, Mandrake Linux 10.1
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- Stevo Ondrejicka, ChBg 1.5
Remedy:
For Debian GNU/Linux 3.0(woody):
Upgrade to the latest version of chbg (1.5-1woody1 or later), as listed in DSA-644-1. See References.
Consequences:
Gain Access
References:
- ChBg Web page, chbg at http://chbg.sourceforge.net/.
- University of Illinois Chicago Web site, chbg 1.5 simplify_path overflows res buffer at http://tigger.uic.edu/~jlongs2/holes/chbg.txt.
- BID-11957: ChBg Scenario File Overflow Vulnerability
- CVE-2004-1264: Buffer overflow in the simplify_path function in config.c for ChBg 1.5 allows remote attackers to execute arbitrary code via a crafted chbg scenario file.
- DSA-644: chbg -- buffer overflow
- MDKSA-2005:027: Updated chbg packages fix vulnerability
Reported:
Dec 17, 2004
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